Dirk Koestra

Dirk Koestra (1615-) was the Dutch governor of Sint Maarten during the late 17th century.

Biography
Dirk Koestra was born in Brill, Netherlands in 1615, and he worked as a merchant before being sent to the Caribbean to serve as Governor of Sint Maarten in the Leeward Islands. Koestra was Governor during a time of war with England and Spain, and he issued letters of marque to privateer Jack Summer in 1660; however, Summer would ultimately side with England, and he would go on to take several Dutch ships as prizes.